Goulds Pumps ICM - IOM - Manual (Page 24)

Installation and Operating Instructions
Model ICM/ICMP, for life grease lubrication
9330-050-en Revision 05
TM 5409 MPE/Re/Wm Page 16 Date 03/2003
7 Maintenance
7.1 Screw connections of the
housing
After initial loading by the operating pressure and
operating temperature the tightening torques of all
connection screws must be checked at the following
points:
♦ housing flange
♦ suction flange
♦ discharge flange
See also Section 6.1, para. 1.
Other inspections are to be performed regularly, de-
pending on the operating requirements.
7.2 Bearing pedestal
The temperature of the bearing pedestal
should not be more than 50°C above the
ambient temperature and must under no
circumstances exceed 80°C.
At higher temperatures, call in qualified staff without
delay. If this is not possible, the pump must be shut
down and taken out of service.
In many cases it is also recommended to measure
vibration in order to detect bearing wear in good time.
Grease-filled bearings of the type 2RS are installed as
a standard feature. The grease is lithium-saponified.
The admissible temperature range is -30°C to
+110°C.
As the bearings cannot be regreased, they must
be replaced in accordance with the instructions.
Size Bearing size > Service life
Group 1 6207-2RS / 15000 hours*
Group 2 6210-2RS / 15000 hours*
* At bearing temperature <50°C
At bearing temperature 70°C appr. 7500 hr
If maintenance work on the pump is required for other
reasons, it is recommended to also replace the bear-
ings as a precaution.
In explosion-hazardous works it is
advisable to monitor the bearing tem-
perature.
7.3 Cleaning
Care must be taken when cleaning the pump to en-
sure that it is not exposed to a strong water jet.
The ingress of water into the bearing pedestal would
substantially impair bearing lubrication.
7.4 Stand-by pumps
If a pump is on stand-by, it is to be started up from
time to time. Regularly turn the shaft by hand in the
direction of rotation.
This operation is to be performed more often for
pumps which are exposed to very strong vibrations
from the plant.
When dismantling the pump from the plant, drain it,
thoroughly clean it, seal with flange covers and store
in accordance with the instructions.
7.5 Notes on dismantling
All repair and maintenance work is to be performed by
skilled staff using appropriate tools and original spare
parts.
Is the necessary documentation available?
Has the pump been taken out of operation, evacuated
and flushed correctly? See also Section 6.3.
7.5.1 Protective clothes
Even if the pump has been properly evacu-
ated and rinsed, residue of the medium may
still remain in the pump. Example: Between
sealing surfaces or in the bearing seats.
Protective clothing in accordance with the
regulations is to be worn.
Protective clothing is also to be worn even if only the
bearing pedestal is to be removed. It may be that me-
dium has penetrated into the lantern chamber through
the can.
7.5.2 Magnetic fields
Caution! Strong magnetic fields
Risk during dismantling and in the vicinity of magnetic
drives as single parts.
Remove loose parts and other magnetisable metals
from the work bench. They could otherwise be at-
tracted : Risk of accident !
Place any tools needed at a safe distance.
Keep electronic equipment and measuring instru-
ments at a distance. In cases of doubt ask the equip-
ment manufacturer.
Hold magnetic drives as single parts firmly or secure.
Otherwise, they could be attracted, for example, by a
vice : Risk of accident !
People with an artificial pacemaker
Keep torso at a minimum distance of 50 cm.